{"id":"UBUNTU-CVE-2019-19272","details":"An issue was discovered in tls_verify_crl in ProFTPD before 1.3.6. Direct dereference of a NULL pointer (a variable initialized to NULL) leads to a crash when validating the certificate of a client connecting to the server in a TLS client/server mutual-authentication setup.","modified":"2026-04-22T12:15:28.463335Z","published":"2019-11-26T04:15:00Z","upstream":["CVE-2019-19272"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-19272"},{"type":"REPORT","url":"https://github.com/proftpd/proftpd/issues/858"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-19272"}],"affected":[{"package":{"name":"proftpd-dfsg","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/proftpd-dfsg@1.3.5a-1ubuntu0.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.5-2","1.3.5a-1","1.3.5a-1build1","1.3.5a-1ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"proftpd-basic","binary_version":"1.3.5a-1ubuntu0.1"},{"binary_name":"proftpd-mod-geoip","binary_version":"1.3.5a-1ubuntu0.1"},{"binary_name":"proftpd-mod-ldap","binary_version":"1.3.5a-1ubuntu0.1"},{"binary_name":"proftpd-mod-mysql","binary_version":"1.3.5a-1ubuntu0.1"},{"binary_name":"proftpd-mod-odbc","binary_version":"1.3.5a-1ubuntu0.1"},{"binary_name":"proftpd-mod-pgsql","binary_version":"1.3.5a-1ubuntu0.1"},{"binary_name":"proftpd-mod-sqlite","binary_version":"1.3.5a-1ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-19272.json"}},{"package":{"name":"proftpd-dfsg","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/proftpd-dfsg@1.3.5e-1build1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.5d-1","1.3.5e-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"proftpd-basic","binary_version":"1.3.5e-1build1"},{"binary_name":"proftpd-mod-geoip","binary_version":"1.3.5e-1build1"},{"binary_version":"1.3.5e-1build1","binary_name":"proftpd-mod-ldap"},{"binary_name":"proftpd-mod-mysql","binary_version":"1.3.5e-1build1"},{"binary_name":"proftpd-mod-odbc","binary_version":"1.3.5e-1build1"},{"binary_name":"proftpd-mod-pgsql","binary_version":"1.3.5e-1build1"},{"binary_name":"proftpd-mod-sqlite","binary_version":"1.3.5e-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-19272.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}